Bayanan asali na masu amfani
Kamfanin siminti yana samar da siminti iri-iri.Kamfanin yana da layin samarwa 3.Canjin wutar lantarki yana amfani da injin inverter drive, 2000KVA2, masu canza wuta 630KVA, kuma kowane tafsiri yana sanye da ma'ajin diyya na capacitor a gefen matsin ƙasa.Tsarin tsarin samar da wutar lantarki shine kamar haka:
Bayanan aiki na ainihi
Ƙarfin fitarwa na mai farawa mai laushi don 2000KVA transformer shine 1720KVA, matsakaicin ƙarfin wutar lantarki shine PF = 0.83, aiki na yanzu shine 2500A, wutar lantarki shine 530KVA630KVA transformer, matsakaicin wutar lantarki shine PF = 0.87, kuma aiki na yanzu shine 770A.The reactive ikon diyya majalisar a karkashin kowane transformer sau da yawa yana da ikon tafiye-tafiye, capacitor mai yayyo, da iko panel nuni bayanai da cewa ba ya ƙyale munanan ayyuka.Saboda haka, madaidaicin ma'aunin wutar lantarki shine kawai 0.84, kuma hukuncin mai amsawa shine kusan 20,000 a cikin Janairu.Kuma injunan layin samarwa da masu farawa masu laushi na iya rushe masana'anta a wasu lokuta.
Binciken Yanayin Tsarin Wuta
Babban nauyin ballast ɗin mai juyawa shine ballasts guda 6 guda ɗaya.Kayan aikin ballast yana samar da adadi mai yawa na bugun jini a cikin aikin canza AC zuwa DC.Tushen bugun bugun jini ne na yau da kullun kuma ana shigar dashi cikin grid ɗin wuta.Harmonic igiyoyin haifar da pulsed halin yanzu aiki ƙarfin lantarki zuwa halayyar impedance na ikon grid, sakamakon firam asarar aiki irin ƙarfin lantarki da kuma halin yanzu, barazana da inganci da aiki aminci na sauya wutar lantarki kayayyakin, kara line hasãra da kuma aiki irin ƙarfin lantarki sabawa, da kuma haifar da mummunan tasiri a kan. grid da wutar lantarki da kansu Suna Tasiri.
Mai sarrafa kwamfuta mai sarrafa shirye-shiryen (PLC) yana kula da jujjuyawar wutar lantarki mai aiki na samar da wutar lantarki.Gabaɗaya an ƙayyade cewa jimlar bugun bugun jini na yanzu yana aiki da ƙarfin ƙarfin firam ɗin (THD) bai wuce 5% ba, kuma ɗayan bugun jini na yanzu yana aiki idan firam ɗin ya yi tsayi da yawa, kuskuren aiki na tsarin sarrafawa na iya haifar da katsewa. samarwa ko aiki, yana haifar da babban haɗarin abin alhaki na samarwa.
Lokacin da reactive ikon diyya capacitor banki aka sa a cikin aiki, saboda bugun jini halin yanzu halayyar impedance na capacitor banki ne kananan, babban adadin bugun jini halin yanzu da aka gabatar a cikin capacitor abun da ke ciki, da kuma halin yanzu adadin yana faɗaɗa cikin sauri, da tsanani shafi ta sabis rayuwa. .A daya bangaren kuma, a lokacin da pulse current capacitor na bankin capacitor ya yi daidai da kwatankwacin inductor na wannan manhaja, karuwar harmonic current (sau 2-10) zai sa capacitor ya yi zafi ya kuma lalata shi, kuma bugun bugun jini zai sa mitar ƙarfin fitarwa ya canza.Sinusoidal waveform ɗin ya fita daga firam, yana haifar da kaifi mai kaifi mai siffar gani-hakori, kuma zai haifar da sakin juzu'i na abin rufe fuska, ta haka yana hanzarta ƙulla abin rufe fuska, da haifar da lahani ga capacitor.Saboda haka, capacitor reactive ikon diyya hukuma ba za a iya amfani da inverter ikon diyya, da kuma wani tace tare da bugun jini halin yanzu danniya aiki ya kamata a zaba domin low-ƙarfin wuta reactive ikon diyya.
Tace tsarin maganin diyya mai amsawa
Burin mulki
Ƙirƙirar kayan aikin ramuwa ta tace ya dace da buƙatun ɓacin rai da sarrafa kashe wutar lantarki.
A ƙarƙashin yanayin aiki na tsarin 0.4KV, bayan an shigar da kayan aikin ramuwa na tacewa, ana kashe bugun bugun jini, kuma matsakaicin matsakaicin wutar lantarki na kowane wata yana kusa da 0.92.
Babban oda mai jituwa, resonance overvoltage, da wuce gona da iri da ya haifar ta hanyar haɗawa da da'irar reshen ramuwa tace ba zai faru ba.
Zane Yana Bin Ka'idoji
Ingancin Wutar Jama'a grid masu jituwa GB/T14519-1993
Canjin wutar lantarki mai ingancin wutar lantarki da flicker GB12326-2000
Gabaɗaya yanayin fasaha na na'urar ramuwa mai ƙarancin wutar lantarki GB/T 15576-1995
Na'urar ramuwa mai ƙarancin ƙarfin wuta JB/T 7115-1993
Yanayin fasaha na ramuwa mai amsawa JB/T9663-1999 "Mai sarrafa wutar lantarki mai ƙarancin ƙarfi ta atomatik" daga ƙimar ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙimar ƙarancin wutar lantarki da kayan lantarki GB/T17625.7-1998
Kalmomin fasaha na Electrotechnical Power capacitors GB/T 2900.16-1996
Low ƙarfin lantarki shunt capacitor GB/T 3983.1-1989
Saukewa: GB10229-88
Mai Rarraba IEC 289-88
Mai sarrafa ramuwa mai ƙarancin ƙarfin wutan lantarki yana oda yanayin fasaha DL/T597-1996
Matsayin kariya mara ƙarancin wutar lantarki mai ƙarfi GB5013.1-1997
Low-voltage cikakken switchgear da iko kayan aiki GB7251.1-1997
ra'ayi na zane
Bisa ga takamaiman halin da ake ciki na kamfanin, da ikon factor da bugun jini halin yanzu danniya ana la'akari a cikin tace diyya na inverter samar da wutar lantarki, da kuma tace gazawar diyya kayan aiki an saita a kan 0.4kV kasa irin ƙarfin lantarki gefen na gidan wuta, wanda zai iya kashewa. da bugun jini halin yanzu da kuma rama domin inganta ikon factor.
A cikin mai canzawa, ballast yana haifar da 6K-1 ci-gaba na bugun jini bisa ga tsarin Fourier na yanzu, sannan yana haifar da igiyoyin bugun jini guda 5, kowanne a kusan 250Hz da 7350Hz.Don haka, lokacin zayyana ramuwar wutar lantarki don tanderun shigar da mitoci na tsaka-tsaki, ya zama dole a ƙirƙira mitoci a kusa da 250Hz da 350Hz don tabbatar da cewa reshen ramuwa na tace zai iya murkushe igiyoyin bugun jini yadda ya kamata, rama nauyin mai amsawa a lokaci guda, da haɓaka yanayin wutar lantarki.
aikin ƙira
Cikakken ikon wutar lantarki na layin wutar lantarki mai inverter na 2000kV AC ana biya daga 0.8 zuwa 0.95.Na'urar diyya ta tace dole ne a sanye take da girma na 760kV, kuma ta atomatik canza zuwa 8 sets na kundin, kuma saitin daya yana aiki tare da diyya mai jujjuyawa a gefen wutar lantarki na ƙasan na'urar.Ayyukan aikin daidaitawa na aji shine 45KVAR, wanda zai iya biyan buƙatun wutar lantarki daban-daban na layin samarwa.An biya cikakken ma'aunin ƙarfin wutar lantarki na 630kV mai haɗa layin mai canzawa, kuma kewayon diyya daga 0.8 zuwa 0.95.Na'urar ramuwa ta tace dole ne a sanye da ƙarar 310kV, wanda za'a canza ta atomatik zuwa jeri huɗu na kundin, kuma saiti ɗaya yana aiki tare da iska mai iska a gefen wutar lantarki na ƙasan na'urar don biyan diyya.Ayyukan aikin daidaitawa na aji shine 26KVAR, wanda zai iya saduwa da buƙatun wutar lantarki daban-daban na layin samarwa.Tsarin ƙirar yana ba da tabbacin cewa ƙarfin wutar lantarki ya wuce 0.95.
Tasirin bincike bayan shigarwa na ramuwa tace
A watan Yulin 2010, an shigar da na'urar biyan diyya ta inverter tace kuma an fara aiki.Na'urar ta atomatik tana bin canjin nauyin mai inverter, tana danne masu jituwa masu girma a cikin ainihin lokaci, tana rama ƙarfin amsawa, kuma tana haɓaka yanayin wutar lantarki.bayanai kamar haka:
Bayan da aka yi amfani da na'urar ramuwa ta tace, canjin yanayin wutar lantarki bayan da aka sanya na'urar ramuwar tacewa kusan 0.97 (bangaren da aka ɗaga yana kusan 0.8 lokacin da aka cire na'urar diyya ta tace)
Load aiki
A halin yanzu da 2000KVA transformers ke amfani da shi ya ragu daga 2500A zuwa 2120A, raguwar 15%;A halin yanzu da 630KVA transformers ke amfani da shi ya ragu daga 770A zuwa 620A, raguwar 19%.Bayan diyya, thepowerlossreductionvalueisWT=△Pd*(S1/S2)2*τ*[1-(cosφ1/cosφ2)2]=50×{(0.85×4500)/4500}2×0.4≈34(kw h) A cikin Formula, Pd ita ce asarar da ake yi na taransfoma, wanda ya kai 50KW, kuma ana kashe kuɗin wutar lantarki a kowace shekara 34*20*30*10*0.7=142,800 yuan (akan yin aiki awa 20 a rana, kwana 30 a wata. , watanni 10 a shekara, yuan 0.7 a kowace kWh).
ikon factor halin da ake ciki
Ma'aunin injiniyan wutar lantarki na kamfanin gaba daya ya karu daga 0.8 zuwa 0.95, kuma ma'aunin aikin injiniya na wata-wata ya kasance a kan 0.96-0.98, wanda ya tashi daga sama da yuan 20,000 a kowane wata zuwa fiye da yuan 6,000-10,000 a kowane wata.
Rarraba ƙarancin wutar lantarki mai ɗaukar nauyi na matatar juyawa ta mitar tana da ikon danne bugun bugun jini da rama nauyin mai aiki, magance matsalar hukumcin wutar lantarki, haɓaka ƙarfin fitarwa na mai canzawa, rage asarar diyya mai aiki, ƙara yawan kayan aiki, da kuma kawo fa'ida ga kamfanin An samar da fa'idodin tattalin arziƙi na zahiri, kuma jarin aikin abokin ciniki bai kai shekara ɗaya da samun jarin aikin ba.Saboda haka, kamfanin ya gamsu sosai da ramuwa da wutar lantarki na inverter tace, kuma zai gabatar da wasu abokan ciniki a nan gaba.
Lokacin aikawa: Afrilu-13-2023